linux-kernel - Re: [PATCH 51/90] ARM: OMAP: osk+mistral backlight, power, board specific

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Date:	Thu, 5 Apr 2007 11:28:11 -0400
From:	Tony Lindgren <tony@...mide.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	linux-kernel@...r.kernel.org,
	David Brownell <dbrownell@...rs.sourceforge.net>
Subject: Re: [PATCH 51/90] ARM: OMAP: osk+mistral backlight, power, board specific

* Randy Dunlap <randy.dunlap@...cle.com> [070404 15:11]:
> On Wed,  4 Apr 2007 14:05:30 -0400 Tony Lindgren wrote:
> 
> > From: David Brownell <dbrownell@...rs.sourceforge.net>
> > 
> > Mistral-specific:
> > 
> >   - Add PWL-driven LCD backlight device
> > 
> >   - Apply power to the board even when the LCD isn't configured; things
> >     like EEPROM, temperature sensor, and wakeup switch depend on it.
> > 
> > Signed-off-by: David Brownell <dbrownell@...rs.sourceforge.net>
> > Signed-off-by: Tony Lindgren <tony@...mide.com>
> > ---
> >  arch/arm/mach-omap1/board-osk.c |   22 ++++++++++++++++++++++
> >  1 files changed, 22 insertions(+), 0 deletions(-)
> > 
> > diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
> > index 253c539..df9681d 100644
> > --- a/arch/arm/mach-omap1/board-osk.c
> > +++ b/arch/arm/mach-omap1/board-osk.c
> > @@ -373,6 +386,15 @@ static void __init osk_mistral_init(void)
> >  	} else
> >  		printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
> >  
> > +	/* LCD:  backlight, and power; power controls other devices on the
> > +	 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
> > +	 */
> > +	omap_cfg_reg(PWL);
> > +	if (omap_request_gpio(2) == 0) {
> > +		omap_set_gpio_direction(2, 0 /* out */);
> > +		omap_set_gpio_dataout(2, 1 /* on */);
> 
> Some #defined values would be better than those comments.

Adding OMAP_GPIO_OUT/ON defines could be fixed later on for all
omap_set_gpio_direction/dataout().

Regards,

Tony
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